//package com.jhy.interceptor;
//
//import com.baomidou.mybatisplus.core.plugins.InterceptorIgnoreHelper;
//import com.baomidou.mybatisplus.core.toolkit.PluginUtils;
//
//import com.baomidou.mybatisplus.extension.plugins.inner.InnerInterceptor;
//
//import org.apache.ibatis.executor.Executor;
//import org.apache.ibatis.executor.statement.StatementHandler;
//import org.apache.ibatis.mapping.BoundSql;
//import org.apache.ibatis.mapping.MappedStatement;
//import org.apache.ibatis.mapping.SqlCommandType;
//import org.apache.ibatis.session.ResultHandler;
//import org.apache.ibatis.session.RowBounds;
//
//import java.sql.Connection;
//import java.sql.SQLException;
//import java.util.List;
//
///**
// * 数据权限拦截器
// *
// * @author Lion Li
// * @version 3.5.0
// */
//public class PlusDataPermissionInterceptor extends JsqlParserSupport implements InnerInterceptor {
//
//    private final PlusDataPermissionHandler dataPermissionHandler = new PlusDataPermissionHandler();
//
//    @Override
//    public void beforeQuery(Executor executor, MappedStatement ms, Object parameter, RowBounds rowBounds, ResultHandler resultHandler, BoundSql boundSql) throws SQLException {
//        // 检查忽略注解
//        if (InterceptorIgnoreHelper.willIgnoreDataPermission(ms.getId())) {
//            return;
//        }
//        // 检查是否无效 无数据权限注解
//        if (dataPermissionHandler.isInvalid(ms.getId())) {
//            return;
//        }
//        // 解析 sql 分配对应方法
//        PluginUtils.MPBoundSql mpBs = PluginUtils.mpBoundSql(boundSql);
//        mpBs.sql(parserSingle(mpBs.sql(), ms.getId()));
//    }
//
//    @Override
//    public void beforePrepare(StatementHandler sh, Connection connection, Integer transactionTimeout) {
//        PluginUtils.MPStatementHandler mpSh = PluginUtils.mpStatementHandler(sh);
//        MappedStatement ms = mpSh.mappedStatement();
//        SqlCommandType sct = ms.getSqlCommandType();
//        if (sct == SqlCommandType.UPDATE || sct == SqlCommandType.DELETE) {
//            if (InterceptorIgnoreHelper.willIgnoreDataPermission(ms.getId())) {
//                return;
//            }
//            PluginUtils.MPBoundSql mpBs = mpSh.mPBoundSql();
//            mpBs.sql(parserMulti(mpBs.sql(), ms.getId()));
//        }
//    }
//
//    @Override
//    protected void processSelect(Select select, int index, String sql, Object obj) {
//        SelectBody selectBody = select.getSelectBody();
//        if (selectBody instanceof PlainSelect) {
//            this.setWhere((PlainSelect) selectBody, (String) obj);
//        } else if (selectBody instanceof SetOperationList) {
//            SetOperationList setOperationList = (SetOperationList) selectBody;
//            List<SelectBody> selectBodyList = setOperationList.getSelects();
//            selectBodyList.forEach(s -> this.setWhere((PlainSelect) s, (String) obj));
//        }
//    }
//
//    @Override
//    protected void processUpdate(Update update, int index, String sql, Object obj) {
//        Expression sqlSegment = dataPermissionHandler.getSqlSegment(update.getWhere(), (String) obj, false);
//        if (null != sqlSegment) {
//            update.setWhere(sqlSegment);
//        }
//    }
//
//    @Override
//    protected void processDelete(Delete delete, int index, String sql, Object obj) {
//        Expression sqlSegment = dataPermissionHandler.getSqlSegment(delete.getWhere(), (String) obj, false);
//        if (null != sqlSegment) {
//            delete.setWhere(sqlSegment);
//        }
//    }
//
//    /**
//     * 设置 where 条件
//     *
//     * @param plainSelect       查询对象
//     * @param mappedStatementId 执行方法id
//     */
//    protected void setWhere(PlainSelect plainSelect, String mappedStatementId) {
//        Expression sqlSegment = dataPermissionHandler.getSqlSegment(plainSelect.getWhere(), mappedStatementId, true);
//        if (null != sqlSegment) {
//            plainSelect.setWhere(sqlSegment);
//        }
//    }
//
//}
//
